Lock cover



FIG. 1 is a front perspective view of a lock cover embodying our new design and shown in an open position, wherein the lock is shown in broken lines for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front view of the lock cover in a closed position;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof. 

The ornamental design for a lock cover, as shown and described. 